Home / 103,863.38-155,732.72-47,633.04

Finding the Fourth Proportional to 103,863.38, 155,732.72 and 47,633.04

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Solution

The fourth proportional to 103,863.38, 155,732.72 and 47,633.04 is: 71,420.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,863.38 : 155,732.72 = 47,633.04 : x
  2. Step 2: Convert to fraction form
    103,863.38/155,732.72 = 47,633.04/x
  3. Step 3: Cross multiply
    103,863.38x = 155,732.72 × 47,633.04
  4. Step 4: Simplify right side
    103,863.38x = 7,418,022,642.90
  5. Step 5: Solve for x
    x = 7,418,022,642.90/103,863.38
  6. Step 6: Final answer
    x = 71,420.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.